(19)
(11) EP 4 150 270 A1

(12)

(43) Date of publication:
22.03.2023 Bulletin 2023/12

(21) Application number: 21730391.6

(22) Date of filing: 13.05.2021
(51) International Patent Classification (IPC): 
F24F 13/02(2006.01)
(52) Cooperative Patent Classification (CPC):
F24F 13/0218
(86) International application number:
PCT/US2021/032267
(87) International publication number:
WO 2021/231740 (18.11.2021 Gazette 2021/46)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 13.05.2020 US 202063024061 P

(71) Applicant: Rite-Hite Holding Corporation
Milwaukee, WI 53204 (US)

(72) Inventors:
  • SCHMIDT, Blaine
    Peosta, Iowa 52068 (US)
  • GEBKE, Kevin J.
    Dubuque, Iowa 52001 (US)
  • KAUFMANN, Nicholas L.
    Sherrill, Iowa 52073 (US)
  • NIEHAUS, William A.
    Holy Cross, Iowa 52053 (US)

(74) Representative: Samson & Partner Patentanwälte mbB 
Widenmayerstraße 6
80538 München
80538 München (DE)

   


(54) APPARATUS FOR TENSIONING PLIABLE AIRDUCTS WHILE SUPPORTING INTERNAL HVAC COMPONENTS